Question

Rinki bought 5 pencils for rs.4 and sells 4 pencils for rs. 5 . The gain % in the transaction is ?

Answer 1

Number of pencils  bought =L.C.M (5,4)=20.

C.P=RS(4*20)/5=Rs 16

s.p=Rs(5*20)/4=Rs 25

profits %=(S.P-C.P)*100/C.P

profits%  =900/16=56.25%